Cheap flight deals from San Francisco to St. Louis Starting at Rp 1,067,851

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • Round-trip
  • One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to fly from San Francisco to St. Louis?

We monitor flight fares to help you find the best deals effortlessly

Cheapest flights
From price
Search
  • 23 30
  • Apr

    30 6
  • 6 13
  • 13 20
  • 20 27
  • May

    27 4
  • 4 11
  • 11 18
  • 18 25
  • Jun

    25 1
  • 1 8
  • 8 15
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Cheapest Airlines flying from San Francisco to St. Louis

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frequently Asked Questions

  • When are flight tickets from San Francisco (SFO) to St. Louis (STL) the cheapest?

    Airlines adjust prices for flights from San Francisco to St. Louis based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from San Francisco (SFO) to St. Louis (STL) cost?

    According to Trip.com's data, the lowest price is around Rp 5,906,193.
  • How long does it take to fly from San Francisco (SFO) to St. Louis (STL) and what is the distance?

    It takes around 3 hours 49 minutes to fly from San Francisco (SFO) to St. Louis (STL).
  • What is the transportation method from the main airport to downtown in St. Louis?

    • The distance from St. Louis Lambert International Airport to downtown is about 20 km. It takes about 40 minutes by taxi.
  • What are the most popular airlines that fly from San Francisco (SFO) to St. Louis (STL)?

    Airlines with flights from San Francisco (SFO) to St. Louis (STL): United Airlines, Southwest Airlines and Air New Zealand.

How to find a cheap flight from San Francisco to St. Louis

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from San Francisco to St. Louis. Book your flights at the right time and save more.
1
Be flexible with your travel dates to get the cheapest San Francisco to St. Louis ticket.
Tap "Date" in the flight search bar to browse the calendar and find airfare from San Francisco to St. Louis for the next six months in 2025. If you're looking to fly within the next three months, the lowest fare is Rp 2174408 for a one-way ticket on Wed, May 7.
2
Compare cheap San Francisco to St. Louis flight deals from hundreds of airlines.
Our powerful search system compares prices from over 500 airlines. So you can find the cheapest flights from San Francisco to St. Louis. The most affordable airline currently operating on this route is United Airlines.
3
Set up a Price Alert to track fare drops.
Set up a Price Alert for your San Francisco to St. Louis route to track ticket prices effortlessly—no need to check manually every day.
4
Don't miss out on cheap San Francisco to St. Louis flight deals and promo codes.
Stay updated on the latest deals with Trip.com Deals and Promo Codes for cheap flights. Sign up for a free membership to unlock even more exclusive flight discounts.
5
Book early or wait unitl the last minute to fine the best fares.
It's always better to book early! Airlines typically release their lowest fares about a year before departure, so check as soon as flights become available. If you miss that window, you may still find great deals closer to your travel date.
6
Search for flights on the go.
For the best booking experience on the go, download Trip.com and search for cheap flights from San Francisco to St. Louis to access exclusive deals just for you.

Flight Info | San Francisco to St. Louis

Cheapest one-way flight price Rp 1,067,850
Cheapest round-trip ticket price Rp 3,586,065
Off-season for travel March
Peak season for travel June
Flight distance 2,805.34 km
Average flight time 3 hours 49 minutes
Popular airline Alaska Airlines